Clasp



A. CORNU.

CLASP.

APPLICATION FILED MAR. 5. 1920.

Patented Aug. 24, 1920.

2 SHEETS-SHEET l.

d fyi, 7. Page..

-TE L- 1 nulli/UMIYIEUVIIMW J m N m /1/ 70 f Q 6 7% A. CORNU.

CLASP.

APPLICATION man MAR. s. 1-920.

r IIL J lll Patented Aug. 24, 1920.

2 SHEETS-SHEET 2.

armo STATES PATENT OFFICE.

AMI conNU, or LA cHaUXuDn-lienns, swrrznRLAND.

CLASP.

To all wim/a t may concern:

Bc it known that I, AMI CoRNU, manufacturer, citizen of Switzerland, residing at La Chaux-de-Fonds, Canton ot' Neuchtel, in the Confederation of Switzerland, have invented certain new and useful Improvements in Clasps', of which the following is a specification. i

The object of the invention is the provision of a clasp particularly adapted for use in bracelets` provided with a thong of leather' or textile fabric, and which may be employed for necklaces, waist bands, garters, braces and the like.

This clasp comprises two parts, one of which is a stud member provided with at least one button, and the other a socket member fitted with a spring adapted to snap into the said button or buttons in order to unite the two parts of the clasp.

rEhe annexed drawings show various working forms of the invention, as examples, with details of diiierent constructions.

In the drawing:

Figure 1 is a front view of a socket member carrying a spring.

Fig. 2 shows the separate pieces of this socket member.

Fig. 3 is a section on line A*B in Fig. 1.

Fig. 4 is a section on line C-D. of Fig. 1.

Fig. 5 is a iront view of a plate fitted with two buttons. v

Fig. 6 is an edge view of the plate shown in Fig. 5.

Fig. '7 is a view of the front tace, and Fig. 8 of the back face of another working form ot the socket member.

Fig. 9 is a section on line A-B, and Fig. 10 a section on line C-D of Fig. 8.

Fig. 1l is a view similar to Fig. S, with certain parts removed so as to show the spring.

Figs. 12 to l represent a second working :torni with two springs.

Figs. 15 and 16 illustrate a third working form.

In Fig. 1, a is a plate with slots 7) and c and openings l and e. The edges, b1 and c1 of the material from which the slots t) and c are made are bent back as shown in Figs. l and 3 and form a receptacle for a double spring f (Fig. 2) which is held in place by plates g and L also held between the bent over edges el, b1. The spring, however, is ree to move in the said receptacle and is shaped so as to extend partially over the Specification of Letters Patent.

Patented Aug. 2,4-, 1920.

1920. serial No. 363,488.

openings (Z and c into which the buttons z' and 7c oi a plate l (Figs. 1l, 5 and 6) are inserted, said plate being provided with a slot m where one end of the ilexible band of the bracelet is attached thereto, while its other end is fastened to the slot or e of the plate a.

in the Figs. 7 to ll the socket part is composed of a plate ,r/O provided with holes for receiving the buttons and with cuts and is bent up at the said cuts so as to form claws g1 and g2 grasping the ends e of straps y, which hold back the spring f placed within the space formed by the bent up edges g3 which are somewhat flatter than the claws g1, g2-

This spring have various forms. The clasp may also have but one button or more than two. In the latter case the clasp is provided with several springs.

In the arrangement shown in Figs. 12, 13 and 14, the space formed by the bent up edges within the openings Z) and c is fitted with two plates g4, h1 between which two straight springs f1 and f2 are held Jfast and at a suitable distance, so as to engage the buttons z' and 7c as shown in Figs. 12 and 14.

According to the working Jform, as represented in Figs. 15 and 16, the clasp comprises a plate a, provided with theslots Z), c, Z and e and a plate Z, carrying the buttons z' and c. The parts f and o of a spring are clamped fast at their central portion between the stay left between the openings b, 0 of the plate a and the bent up edges b1, c1, the arms of said springs being left tree with a tendency to close together as shown in Fig. 15. It the buttons i., l: are pressed into the openings (Z, e they will separate said arms which will then be engaged within the necks of said buttons as may be seen in Fig. 16.

I claim as my invention:

1. ln a clasp, a member having a stud proliecting therefrom, a socket member comprising a body portion having substantially parallel ribs forming a receptacle, a spring member in said receptacle, and a plate fixed in the said receptacle and having an opening therein with a portion thereof spanned by the said spring, there being an opening in the said body portion registering with the opening in the plate through which the said stud is adapted to pass and to be engaged by the spring to maintain the parts in an assembled relationship.

2. In a clasp, a member having a stud proj ecting therefrom, a socket member comprising a body portion having substantially parallel ribs stamped up from portions thereof to provide recesses therein and a receptacle between the ribs and the adjacent portions of the socket member, a spring in said receptacle, and a plate fixed in the said receptacle and having an opening therein withl a portion thereof spanned by the said spring, there being an opening in the said body por-Y tion registering with the opening in the plate through which the said stud is adapted tov pass and to, be engaged by the springto maintain the parts in an assembled relationship.

3. In a clasp, a member having a stud projecting therefrom, a socket member com-` prising a body portion having substantially parallel ribs.v stamped np from portions thereof to provide recesses therein and a ref ceptacle between the ribs and the adjacent portions of the socket member, a spring in said receptacle, a plate having a recess in one edge thereof, With the spring bearing against the recessed edge of the plate, there being an opening in the said body portion or the socket member. registering with the re-l cess in the plate and` through which the said stud is adapted to pass and to be engaged by thespring to maintain the parts in an assembled relationship.

l 4. In a clasp, a member having a pair of studs projecting therefrom in spaced positions, a socket member comprising a body portion having substantiallv paralleli-ibs in spaced postiQIlS Silllped np from portions of the socket member and providing receptacles between the said ribs and the adjacent parts Vof the socket member', an Sshaped spring in the said receptacles, and a pair of plates placed in the said receptacles and each having a recess in an inner edge thereof, with one end of the said spring bearing against the edge of each plate and extending across the recess therein, there being openings inthe socket member corresponding to the recesses in the said plates through which the said studs are adapted to pass and to be engaged by the ends of the springs to. maintain the parts in their associated relationship.

In testimony whereof I aix my signature in presence ci' two witnesses..

AMI CORNU- YVitnesses.:

W. Nur, Dr- R019E WURSTERNBERGER.. 

